Features
Applications
nꢀ Shieldedꢀconstruction
nꢀ Metalꢀalloyꢀpowderꢀcore
nꢀ Highꢀsaturationꢀcurrent
nꢀ Flatꢀwire
nꢀ Selectedꢀautomotiveꢀapplications:
ꢀ
ꢀ
ꢀ
-ꢀ Driverꢀassistantꢀ
-ꢀ Infotainmentꢀ
-ꢀ Lighting
1R0
1702
nꢀ DC/DCꢀconverters
nꢀ Powerꢀsupplies
nꢀ AEC-Q200ꢀcompliant
nꢀ RoHSꢀcompliant*ꢀandꢀhalogenꢀfree**
ꢀ
SRP4020FAꢀSeriesꢀ–ꢀShieldedꢀPowerꢀInductors
Electrical Specifications @ 25 °C
Inductance
@ 100 kHz / 1 V
I sat (A)
Typ.
I rms (A)
Typ.
SRF
(MHz)
Typ.
DCR
(mΩ)
Typ.
DCR
(mΩ)
Max.
Bourns
Part Number
Q
Min.
20 °C
40 °C
10 % L
Drop
20 % L
Drop
30 % L
Drop
L (µH)
0.47
0.68
0.82
1.0
Tol. %
± 20 %
± 20 %
± 20 %
± 20 %
± 20 %
± 20 %
± 20 %
± 20 %
± 20 %
± 20 %
Temp. Rise Temp. Rise
SRP4020FA-R47M
SRP4020FA-R68M
SRP4020FA-R82M
SRP4020FA-1R0M
SRP4020FA-1R2M
SRP4020FA-1R5M
SRP4020FA-2R0M
SRP4020FA-2R2M
SRP4020FA-3R3M
SRP4020FA-4R7M
30
20
20
20
20
20
15
15
15
15
90
73
62
56
53
45
40
38
26
25
6.0
7.3
6.8
8.2
9.8
9.2
8.5
8.0
7.2
6.7
6.2
6.0
4.4
3.8
13.2
12.0
11.5
11.0
9.5
7.0
5.2
4.8
4.5
4.3
4.1
3.2
3.1
2.7
2.0
10.0
8.0
6.5
5.4
5.0
4.5
4.0
3.8
3.4
2.7
14.0
11.6
9.0
8.0
7.5
7.5
5.0
4.8
5.3
4.0
8.6
9.5
10.6
12.2
14.4
21.15
21.35
34.2
52.0
11.7
13.4
15.8
23.3
23.5
38.3
57.2
1.2
1.5
9.1
2.0
8.2
2.2
8.0
3.3
5.5
4.7
5.1
Product Dimensions
General Specifications
Operating Temperature
................................-55 °C to +155 °C
(Temperature rise included)
4.1ꢀ ꢀ0.2
(.161ꢀ ꢀ.008)
3.4ꢀ ꢀ0.3
(.134ꢀ ꢀ.012)
Storage Temperature (Component)
................................-55 °C to +155 °C
Rated Current............. Inductance drops
10, 20 or 30 % at Isat
0.88ꢀ ꢀ0.2
(.035ꢀ ꢀ.008)
1R0
4.1ꢀ ꢀ0.2
(.161ꢀ ꢀ.008)
1.6ꢀ ꢀ0.25
(.063ꢀ ꢀ.010)
Temperature Rise.................20 or 40 °C
1625
at rated Irms1
MSL......................................................1
ESD Classification (HBM)................. N/A
Noteꢀ1:ꢀCircuitꢀdesign,ꢀcomponent,ꢀPCBꢀtraceꢀsizeꢀ
andꢀthickness,ꢀairflowꢀandꢀotherꢀcoolingꢀprovisionsꢀallꢀ
affectꢀtheꢀpartꢀtemperature.ꢀPartꢀtemperatureꢀshouldꢀbeꢀ
verifiedꢀinꢀtheꢀendꢀapplication.
1.9ꢀ ꢀ0.2
(.075ꢀ ꢀ.008)
ꢀ
MM
(INCHES)
DIMENSIONS:
ꢀ
How to Order
Schematic
Materials
Core..........................Metal alloy powder
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging..... 3000 pcs. per 13-inch reel
SRP4020FA - 1R0M
Model
Value Code (see table)
Recommended Layout
3.8
(.150)
REF.
3.4
(.134)
REF.
Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 520 390 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
1.4
(.055)
REF.
ꢀ
MM
(INCHES)
DIMENSIONS:
ꢀ
*ꢀꢀRoHSꢀDirectiveꢀ2015/863,ꢀMarꢀ31,ꢀ2015ꢀandꢀAnnex.ꢀ
**Bournsꢀconsidersꢀaꢀproductꢀtoꢀbeꢀ“halogenꢀfree”ꢀifꢀ(a)ꢀtheꢀBromineꢀ(Br)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀ(b)ꢀtheꢀChlorineꢀꢀ
ꢀꢀꢀꢀ(Cl)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀandꢀ(c)ꢀtheꢀtotalꢀBromineꢀ(Br)ꢀandꢀChlorineꢀ(Cl)ꢀcontentꢀisꢀ1500ꢀppmꢀorꢀless.
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.ꢀ
Theꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀlegalꢀdisclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/docs/legal/disclaimer.pdf.